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Merge tag 'overflow-v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees...
[mirror_ubuntu-jammy-kernel.git] / drivers / hid / hid-input.c
CommitLineData
1a59d1b8 1// SPDX-License-Identifier: GPL-2.0-or-later
dde5845a 2/*
dde5845a 3 * Copyright (c) 2000-2001 Vojtech Pavlik
7d39e849 4 * Copyright (c) 2006-2010 Jiri Kosina
dde5845a
JK		 5 *
6 * HID to Linux Input mapping
7 */
8
9/*
dde5845a
JK		 10 *
11 * Should you need to contact me, the author, you can do so either by
12 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
13 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
14 */
15
16#include <linux/module.h>
17#include <linux/slab.h>
18#include <linux/kernel.h>
dde5845a 19
dde5845a 20#include <linux/hid.h>
c080d89a 21#include <linux/hid-debug.h>
dde5845a 22
bbc21cfd
JF		 23#include "hid-ids.h"
24
dde5845a
JK		 25#define unk KEY_UNKNOWN
26
27static const unsigned char hid_keyboard[256] = {
28 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
29 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
30 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
31 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
32 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
33 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
34 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
35 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
36 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
437f3b19 37 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,
dde5845a 38 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
1fe8736d 39 unk,unk,unk,unk,unk,unk,179,180,unk,unk,unk,unk,unk,unk,unk,unk,
dde5845a 40 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
437f3b19 41 unk,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,unk,unk,unk,unk,
dde5845a
JK		 42 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
43 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
44};
45
46static const struct {
47 __s32 x;
48 __s32 y;
49} hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
50
022e8c4d
JS		 51#define map_abs(c) hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c))
52#define map_rel(c) hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c))
53#define map_key(c) hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c))
54#define map_led(c) hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c))
dde5845a 55
022e8c4d
JS		 56#define map_abs_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
57 &max, EV_ABS, (c))
58#define map_key_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
59 &max, EV_KEY, (c))
dde5845a 60
a0bf0ea8
DT		 61static bool match_scancode(struct hid_usage *usage,
62 unsigned int cur_idx, unsigned int scancode)
fe7ba31f 63{
a0bf0ea8 64 return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode;
fe7ba31f
MR		 65}
66
a0bf0ea8
DT		 67static bool match_keycode(struct hid_usage *usage,
68 unsigned int cur_idx, unsigned int keycode)
fe7ba31f 69{
f5854fad
DT		 70 /*
71 * We should exclude unmapped usages when doing lookup by keycode.
72 */
73 return (usage->type == EV_KEY && usage->code == keycode);
a0bf0ea8 74}
58b93995 75
a0bf0ea8
DT		 76static bool match_index(struct hid_usage *usage,
77 unsigned int cur_idx, unsigned int idx)
78{
79 return cur_idx == idx;
fe7ba31f
MR		 80}
81
a0bf0ea8
DT		 82typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage,
83 unsigned int cur_idx, unsigned int val);
84
fe7ba31f 85static struct hid_usage *hidinput_find_key(struct hid_device *hid,
a0bf0ea8
DT		 86 hid_usage_cmp_t match,
87 unsigned int value,
88 unsigned int *usage_idx)
fe7ba31f 89{
a0bf0ea8 90 unsigned int i, j, k, cur_idx = 0;
fe7ba31f
MR		 91 struct hid_report *report;
92 struct hid_usage *usage;
93
94 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
95 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
96 for (i = 0; i < report->maxfield; i++) {
a0bf0ea8 97 for (j = 0; j < report->field[i]->maxusage; j++) {
fe7ba31f 98 usage = report->field[i]->usage + j;
f5854fad 99 if (usage->type == EV_KEY || usage->type == 0) {
a0bf0ea8
DT		 100 if (match(usage, cur_idx, value)) {
101 if (usage_idx)
102 *usage_idx = cur_idx;
103 return usage;
104 }
105 cur_idx++;
106 }
fe7ba31f
MR		 107 }
108 }
109 }
110 }
111 return NULL;
112}
113
a0bf0ea8
DT		 114static struct hid_usage *hidinput_locate_usage(struct hid_device *hid,
115 const struct input_keymap_entry *ke,
116 unsigned int *index)
117{
118 struct hid_usage *usage;
119 unsigned int scancode;
120
121 if (ke->flags & INPUT_KEYMAP_BY_INDEX)
122 usage = hidinput_find_key(hid, match_index, ke->index, index);
123 else if (input_scancode_to_scalar(ke, &scancode) == 0)
124 usage = hidinput_find_key(hid, match_scancode, scancode, index);
125 else
126 usage = NULL;
127
128 return usage;
129}
130
58b93995 131static int hidinput_getkeycode(struct input_dev *dev,
a0bf0ea8 132 struct input_keymap_entry *ke)
fe7ba31f 133{
f202df60 134 struct hid_device *hid = input_get_drvdata(dev);
fe7ba31f 135 struct hid_usage *usage;
a0bf0ea8 136 unsigned int scancode, index;
77b29662 137
a0bf0ea8 138 usage = hidinput_locate_usage(hid, ke, &index);
fe7ba31f 139 if (usage) {
f5854fad
DT		 140 ke->keycode = usage->type == EV_KEY ?
141 usage->code : KEY_RESERVED;
a0bf0ea8
DT		 142 ke->index = index;
143 scancode = usage->hid & (HID_USAGE_PAGE | HID_USAGE);
144 ke->len = sizeof(scancode);
145 memcpy(ke->scancode, &scancode, sizeof(scancode));
fe7ba31f
MR		 146 return 0;
147 }
a0bf0ea8 148
fe7ba31f
MR		 149 return -EINVAL;
150}
151
58b93995 152static int hidinput_setkeycode(struct input_dev *dev,
a0bf0ea8
DT		 153 const struct input_keymap_entry *ke,
154 unsigned int *old_keycode)
fe7ba31f 155{
f202df60 156 struct hid_device *hid = input_get_drvdata(dev);
fe7ba31f 157 struct hid_usage *usage;
77b29662 158
a0bf0ea8 159 usage = hidinput_locate_usage(hid, ke, NULL);
fe7ba31f 160 if (usage) {
f5854fad
DT		 161 *old_keycode = usage->type == EV_KEY ?
162 usage->code : KEY_RESERVED;
a0bf0ea8 163 usage->code = ke->keycode;
77b29662 164
a0bf0ea8 165 clear_bit(*old_keycode, dev->keybit);
fe7ba31f 166 set_bit(usage->code, dev->keybit);
587d1452 167 dbg_hid("Assigned keycode %d to HID usage code %x\n",
a0bf0ea8
DT		 168 usage->code, usage->hid);
169
170 /*
171 * Set the keybit for the old keycode if the old keycode is used
172 * by another key
173 */
174 if (hidinput_find_key(hid, match_keycode, *old_keycode, NULL))
175 set_bit(*old_keycode, dev->keybit);
77b29662 176
fe7ba31f
MR		 177 return 0;
178 }
77b29662 179
fe7ba31f
MR		 180 return -EINVAL;
181}
182
ad0e669b 183
4ea6e4ff
NK		 184/**
185 * hidinput_calc_abs_res - calculate an absolute axis resolution
186 * @field: the HID report field to calculate resolution for
187 * @code: axis code
188 *
189 * The formula is:
190 * (logical_maximum - logical_minimum)
191 * resolution = ----------------------------------------------------------
192 * (physical_maximum - physical_minimum) * 10 ^ unit_exponent
193 *
194 * as seen in the HID specification v1.11 6.2.2.7 Global Items.
195 *
83ed79c5
DT		 196 * Only exponent 1 length units are processed. Centimeters and inches are
197 * converted to millimeters. Degrees are converted to radians.
4ea6e4ff 198 */
37cf6e6f 199__s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
4ea6e4ff
NK		 200{
201 __s32 unit_exponent = field->unit_exponent;
202 __s32 logical_extents = field->logical_maximum -
203 field->logical_minimum;
204 __s32 physical_extents = field->physical_maximum -
205 field->physical_minimum;
206 __s32 prev;
207
208 /* Check if the extents are sane */
209 if (logical_extents <= 0 || physical_extents <= 0)
210 return 0;
211
212 /*
213 * Verify and convert units.
214 * See HID specification v1.11 6.2.2.7 Global Items for unit decoding
215 */
b73b2da0
NK		 216 switch (code) {
217 case ABS_X:
218 case ABS_Y:
219 case ABS_Z:
37cf6e6f
BT		 220 case ABS_MT_POSITION_X:
221 case ABS_MT_POSITION_Y:
222 case ABS_MT_TOOL_X:
223 case ABS_MT_TOOL_Y:
224 case ABS_MT_TOUCH_MAJOR:
225 case ABS_MT_TOUCH_MINOR:
ad0e669b 226 if (field->unit == 0x11) { /* If centimeters */
83ed79c5
DT		 227 /* Convert to millimeters */
228 unit_exponent += 1;
ad0e669b 229 } else if (field->unit == 0x13) { /* If inches */
83ed79c5
DT		 230 /* Convert to millimeters */
231 prev = physical_extents;
232 physical_extents *= 254;
233 if (physical_extents < prev)
4ea6e4ff 234 return 0;
83ed79c5 235 unit_exponent -= 1;
ad0e669b 236 } else {
4ea6e4ff
NK		 237 return 0;
238 }
b73b2da0
NK		 239 break;
240
241 case ABS_RX:
242 case ABS_RY:
243 case ABS_RZ:
c0bf5741 244 case ABS_WHEEL:
b73b2da0
NK		 245 case ABS_TILT_X:
246 case ABS_TILT_Y:
4ea6e4ff
NK		 247 if (field->unit == 0x14) { /* If degrees */
248 /* Convert to radians */
249 prev = logical_extents;
250 logical_extents *= 573;
251 if (logical_extents < prev)
252 return 0;
253 unit_exponent += 1;
254 } else if (field->unit != 0x12) { /* If not radians */
255 return 0;
256 }
b73b2da0
NK		 257 break;
258
259 default:
4ea6e4ff
NK		 260 return 0;
261 }
262
263 /* Apply negative unit exponent */
264 for (; unit_exponent < 0; unit_exponent++) {
265 prev = logical_extents;
266 logical_extents *= 10;
267 if (logical_extents < prev)
268 return 0;
269 }
270 /* Apply positive unit exponent */
271 for (; unit_exponent > 0; unit_exponent--) {
272 prev = physical_extents;
273 physical_extents *= 10;
274 if (physical_extents < prev)
275 return 0;
276 }
277
278 /* Calculate resolution */
ccdd6994 279 return DIV_ROUND_CLOSEST(logical_extents, physical_extents);
4ea6e4ff 280}
37cf6e6f 281EXPORT_SYMBOL_GPL(hidinput_calc_abs_res);
4ea6e4ff 282
4f5ca836
JF		 283#ifdef CONFIG_HID_BATTERY_STRENGTH
284static enum power_supply_property hidinput_battery_props[] = {
285 POWER_SUPPLY_PROP_PRESENT,
286 POWER_SUPPLY_PROP_ONLINE,
287 POWER_SUPPLY_PROP_CAPACITY,
288 POWER_SUPPLY_PROP_MODEL_NAME,
45d9c273
JF		 289 POWER_SUPPLY_PROP_STATUS,
290 POWER_SUPPLY_PROP_SCOPE,
4f5ca836
JF		 291};
292
bbc21cfd 293#define HID_BATTERY_QUIRK_PERCENT (1 << 0) /* always reports percent */
652aa6a9 294#define HID_BATTERY_QUIRK_FEATURE (1 << 1) /* ask for feature report */
5d9374cf 295#define HID_BATTERY_QUIRK_IGNORE (1 << 2) /* completely ignore the battery */
bbc21cfd
JF		 296
297static const struct hid_device_id hid_battery_quirks[] = {
4cc85417 298 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
cbd366be
RS		 299 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
300 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
301 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
302 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI),
303 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
652aa6a9 304 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
cbd366be 305 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
652aa6a9 306 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
da940db4
KR		 307 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
308 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO),
309 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
0c47935c
DN		 310 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
311 USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
312 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
5d9374cf
AP		 313 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM,
314 USB_DEVICE_ID_ELECOM_BM084),
315 HID_BATTERY_QUIRK_IGNORE },
0fd79184
BL		 316 { HID_USB_DEVICE(USB_VENDOR_ID_SYMBOL,
317 USB_DEVICE_ID_SYMBOL_SCANNER_3),
318 HID_BATTERY_QUIRK_IGNORE },
a767ffea
NH		 319 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK,
320 USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD),
321 HID_BATTERY_QUIRK_IGNORE },
7940fb03
HG		 322 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
323 USB_DEVICE_ID_LOGITECH_DINOVO_EDGE_KBD),
324 HID_BATTERY_QUIRK_IGNORE },
7c38e769
SM		 325 { HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN),
326 HID_BATTERY_QUIRK_IGNORE },
decfe496
ED		 327 { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_15),
328 HID_BATTERY_QUIRK_IGNORE },
bbc21cfd
JF		 329 {}
330};
331
332static unsigned find_battery_quirk(struct hid_device *hdev)
333{
334 unsigned quirks = 0;
335 const struct hid_device_id *match;
336
337 match = hid_match_id(hdev, hid_battery_quirks);
338 if (match != NULL)
339 quirks = match->driver_data;
340
341 return quirks;
342}
343
581c4484
DT		 344static int hidinput_scale_battery_capacity(struct hid_device *dev,
345 int value)
346{
347 if (dev->battery_min < dev->battery_max &&
348 value >= dev->battery_min && value <= dev->battery_max)
349 value = ((value - dev->battery_min) * 100) /
350 (dev->battery_max - dev->battery_min);
351
352 return value;
353}
354
355static int hidinput_query_battery_capacity(struct hid_device *dev)
356{
357 u8 *buf;
358 int ret;
359
4f57cace 360 buf = kmalloc(4, GFP_KERNEL);
581c4484
DT		 361 if (!buf)
362 return -ENOMEM;
363
4f57cace 364 ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 4,
581c4484 365 dev->battery_report_type, HID_REQ_GET_REPORT);
4f57cace 366 if (ret < 2) {
581c4484
DT		 367 kfree(buf);
368 return -ENODATA;
369 }
370
371 ret = hidinput_scale_battery_capacity(dev, buf[1]);
372 kfree(buf);
373 return ret;
374}
375
4f5ca836
JF		 376static int hidinput_get_battery_property(struct power_supply *psy,
377 enum power_supply_property prop,
378 union power_supply_propval *val)
379{
297d716f 380 struct hid_device *dev = power_supply_get_drvdata(psy);
581c4484 381 int value;
4f5ca836
JF		 382 int ret = 0;
383
384 switch (prop) {
385 case POWER_SUPPLY_PROP_PRESENT:
386 case POWER_SUPPLY_PROP_ONLINE:
387 val->intval = 1;
388 break;
389
390 case POWER_SUPPLY_PROP_CAPACITY:
2e210bbb
DT		 391 if (dev->battery_status != HID_BATTERY_REPORTED &&
392 !dev->battery_avoid_query) {
581c4484
DT		 393 value = hidinput_query_battery_capacity(dev);
394 if (value < 0)
395 return value;
396 } else {
397 value = dev->battery_capacity;
c5a92aa3
DN		 398 }
399
581c4484 400 val->intval = value;
4f5ca836
JF		 401 break;
402
403 case POWER_SUPPLY_PROP_MODEL_NAME:
404 val->strval = dev->name;
405 break;
406
c5a92aa3 407 case POWER_SUPPLY_PROP_STATUS:
2e210bbb
DT		 408 if (dev->battery_status != HID_BATTERY_REPORTED &&
409 !dev->battery_avoid_query) {
581c4484
DT		 410 value = hidinput_query_battery_capacity(dev);
411 if (value < 0)
412 return value;
413
414 dev->battery_capacity = value;
2e210bbb 415 dev->battery_status = HID_BATTERY_QUERIED;
581c4484
DT		 416 }
417
2e210bbb 418 if (dev->battery_status == HID_BATTERY_UNKNOWN)
581c4484
DT		 419 val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
420 else if (dev->battery_capacity == 100)
421 val->intval = POWER_SUPPLY_STATUS_FULL;
422 else
423 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
c5a92aa3
DN		 424 break;
425
45d9c273
JF		 426 case POWER_SUPPLY_PROP_SCOPE:
427 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
428 break;
429
4f5ca836
JF		 430 default:
431 ret = -EINVAL;
432 break;
433 }
434
435 return ret;
436}
437
581c4484 438static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
4f5ca836 439{
581c4484 440 struct power_supply_desc *psy_desc;
297d716f 441 struct power_supply_config psy_cfg = { .drv_data = dev, };
bbc21cfd 442 unsigned quirks;
2f2e3f6d 443 s32 min, max;
581c4484 444 int error;
2f2e3f6d 445
581c4484
DT		 446 if (dev->battery)
447 return 0; /* already initialized? */
4f5ca836 448
5d9374cf
AP		 449 quirks = find_battery_quirk(dev);
450
451 hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
452 dev->bus, dev->vendor, dev->product, dev->version, quirks);
453
454 if (quirks & HID_BATTERY_QUIRK_IGNORE)
581c4484 455 return 0;
5d9374cf 456
297d716f 457 psy_desc = kzalloc(sizeof(*psy_desc), GFP_KERNEL);
581c4484
DT		 458 if (!psy_desc)
459 return -ENOMEM;
4f5ca836 460
09223865
DT		 461 psy_desc->name = kasprintf(GFP_KERNEL, "hid-%s-battery",
462 strlen(dev->uniq) ?
463 dev->uniq : dev_name(&dev->dev));
581c4484
DT		 464 if (!psy_desc->name) {
465 error = -ENOMEM;
466 goto err_free_mem;
297d716f
KK		 467 }
468
469 psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
470 psy_desc->properties = hidinput_battery_props;
471 psy_desc->num_properties = ARRAY_SIZE(hidinput_battery_props);
472 psy_desc->use_for_apm = 0;
473 psy_desc->get_property = hidinput_get_battery_property;
4f5ca836 474
2f2e3f6d
JF		 475 min = field->logical_minimum;
476 max = field->logical_maximum;
477
bbc21cfd
JF		 478 if (quirks & HID_BATTERY_QUIRK_PERCENT) {
479 min = 0;
480 max = 100;
481 }
482
652aa6a9
JF		 483 if (quirks & HID_BATTERY_QUIRK_FEATURE)
484 report_type = HID_FEATURE_REPORT;
485
4f5ca836
JF		 486 dev->battery_min = min;
487 dev->battery_max = max;
fb8ac91b 488 dev->battery_report_type = report_type;
2f2e3f6d 489 dev->battery_report_id = field->report->id;
4f5ca836 490
2e210bbb
DT		 491 /*
492 * Stylus is normally not connected to the device and thus we
493 * can't query the device and get meaningful battery strength.
494 * We have to wait for the device to report it on its own.
495 */
496 dev->battery_avoid_query = report_type == HID_INPUT_REPORT &&
497 field->physical == HID_DG_STYLUS;
498
297d716f
KK		 499 dev->battery = power_supply_register(&dev->dev, psy_desc, &psy_cfg);
500 if (IS_ERR(dev->battery)) {
581c4484
DT		 501 error = PTR_ERR(dev->battery);
502 hid_warn(dev, "can't register power supply: %d\n", error);
503 goto err_free_name;
4f5ca836 504 }
2f2e3f6d 505
581c4484
DT		 506 power_supply_powers(dev->battery, &dev->dev);
507 return 0;
508
509err_free_name:
510 kfree(psy_desc->name);
511err_free_mem:
512 kfree(psy_desc);
513 dev->battery = NULL;
514 return error;
4f5ca836
JF		 515}
516
517static void hidinput_cleanup_battery(struct hid_device *dev)
518{
0621809e
KK		 519 const struct power_supply_desc *psy_desc;
520
297d716f 521 if (!dev->battery)
4f5ca836
JF		 522 return;
523
0621809e 524 psy_desc = dev->battery->desc;
297d716f 525 power_supply_unregister(dev->battery);
0621809e
KK		 526 kfree(psy_desc->name);
527 kfree(psy_desc);
297d716f 528 dev->battery = NULL;
4f5ca836 529}
581c4484
DT		 530
531static void hidinput_update_battery(struct hid_device *dev, int value)
532{
0152b29c
DT		 533 int capacity;
534
581c4484
DT		 535 if (!dev->battery)
536 return;
537
538 if (value == 0 || value < dev->battery_min || value > dev->battery_max)
539 return;
540
0152b29c
DT		 541 capacity = hidinput_scale_battery_capacity(dev, value);
542
2e210bbb 543 if (dev->battery_status != HID_BATTERY_REPORTED ||
c6838eee 544 capacity != dev->battery_capacity ||
545 ktime_after(ktime_get_coarse(), dev->battery_ratelimit_time)) {
0152b29c 546 dev->battery_capacity = capacity;
2e210bbb 547 dev->battery_status = HID_BATTERY_REPORTED;
c6838eee 548 dev->battery_ratelimit_time =
549 ktime_add_ms(ktime_get_coarse(), 30 * 1000);
0152b29c
DT		 550 power_supply_changed(dev->battery);
551 }
581c4484 552}
4f5ca836 553#else /* !CONFIG_HID_BATTERY_STRENGTH */
581c4484
DT		 554static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
555 struct hid_field *field)
4f5ca836 556{
581c4484 557 return 0;
4f5ca836
JF		 558}
559
560static void hidinput_cleanup_battery(struct hid_device *dev)
561{
562}
581c4484
DT		 563
564static void hidinput_update_battery(struct hid_device *dev, int value)
565{
566}
4f5ca836
JF		 567#endif /* CONFIG_HID_BATTERY_STRENGTH */
568
dde5845a
JK		 569static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
570 struct hid_usage *usage)
571{
572 struct input_dev *input = hidinput->input;
e0712985 573 struct hid_device *device = input_get_drvdata(input);
3715ade9 574 int max = 0, code;
dde5845a
JK		 575 unsigned long *bit = NULL;
576
577 field->hidinput = hidinput;
578
dde5845a
JK		 579 if (field->flags & HID_MAIN_ITEM_CONSTANT)
580 goto ignore;
581
cc6b54aa
BT		 582 /* Ignore if report count is out of bounds. */
583 if (field->report_count < 1)
584 goto ignore;
585
82eb1219
JK		 586 /* only LED usages are supported in output fields */
587 if (field->report_type == HID_OUTPUT_REPORT &&
588 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
82eb1219
JK		 589 goto ignore;
590 }
591
c500c971
JS		 592 if (device->driver->input_mapping) {
593 int ret = device->driver->input_mapping(device, hidinput, field,
594 usage, &bit, &max);
595 if (ret > 0)
596 goto mapped;
597 if (ret < 0)
598 goto ignore;
599 }
600
dde5845a 601 switch (usage->hid & HID_USAGE_PAGE) {
880d29f1
JS		 602 case HID_UP_UNDEFINED:
603 goto ignore;
dde5845a 604
880d29f1
JS		 605 case HID_UP_KEYBOARD:
606 set_bit(EV_REP, input->evbit);
dde5845a 607
880d29f1
JS		 608 if ((usage->hid & HID_USAGE) < 256) {
609 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
610 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
611 } else
612 map_key(KEY_UNKNOWN);
dde5845a 613
880d29f1 614 break;
dde5845a 615
880d29f1 616 case HID_UP_BUTTON:
7f978b9b 617 code = ((usage->hid - 1) & HID_USAGE);
dde5845a 618
880d29f1
JS		 619 switch (field->application) {
620 case HID_GD_MOUSE:
1874542d 621 case HID_GD_POINTER: code += BTN_MOUSE; break;
cf2f765f 622 case HID_GD_JOYSTICK:
fc99f22c
DM		 623 if (code <= 0xf)
624 code += BTN_JOYSTICK;
625 else
f8e86d05
IR		 626 code += BTN_TRIGGER_HAPPY - 0x10;
627 break;
628 case HID_GD_GAMEPAD:
629 if (code <= 0xf)
630 code += BTN_GAMEPAD;
631 else
632 code += BTN_TRIGGER_HAPPY - 0x10;
fc99f22c 633 break;
880d29f1
JS		 634 default:
635 switch (field->physical) {
636 case HID_GD_MOUSE:
1874542d
FF		 637 case HID_GD_POINTER: code += BTN_MOUSE; break;
638 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
639 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
640 default: code += BTN_MISC;
dde5845a 641 }
880d29f1 642 }
dde5845a 643
880d29f1
JS		 644 map_key(code);
645 break;
646
647 case HID_UP_SIMULATION:
648 switch (usage->hid & 0xffff) {
649 case 0xba: map_abs(ABS_RUDDER); break;
650 case 0xbb: map_abs(ABS_THROTTLE); break;
651 case 0xc4: map_abs(ABS_GAS); break;
652 case 0xc5: map_abs(ABS_BRAKE); break;
653 case 0xc8: map_abs(ABS_WHEEL); break;
654 default: goto ignore;
655 }
656 break;
657
658 case HID_UP_GENDESK:
659 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
660 switch (usage->hid & 0xf) {
661 case 0x1: map_key_clear(KEY_POWER); break;
662 case 0x2: map_key_clear(KEY_SLEEP); break;
663 case 0x3: map_key_clear(KEY_WAKEUP); break;
437f3b19
JW		 664 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
665 case 0x5: map_key_clear(KEY_MENU); break;
666 case 0x6: map_key_clear(KEY_PROG1); break;
667 case 0x7: map_key_clear(KEY_HELP); break;
668 case 0x8: map_key_clear(KEY_EXIT); break;
669 case 0x9: map_key_clear(KEY_SELECT); break;
670 case 0xa: map_key_clear(KEY_RIGHT); break;
671 case 0xb: map_key_clear(KEY_LEFT); break;
672 case 0xc: map_key_clear(KEY_UP); break;
673 case 0xd: map_key_clear(KEY_DOWN); break;
674 case 0xe: map_key_clear(KEY_POWER2); break;
675 case 0xf: map_key_clear(KEY_RESTART); break;
880d29f1 676 default: goto unknown;
dde5845a
JK		 677 }
678 break;
880d29f1 679 }
dde5845a 680
c01908a1
DT		 681 if ((usage->hid & 0xf0) == 0xb0) { /* SC - Display */
682 switch (usage->hid & 0xf) {
683 case 0x05: map_key_clear(KEY_SWITCHVIDEOMODE); break;
684 default: goto ignore;
685 }
686 break;
687 }
688
1989dada
BT		 689 /*
690 * Some lazy vendors declare 255 usages for System Control,
691 * leading to the creation of ABS_X|Y axis and too many others.
692 * It wouldn't be a problem if joydev doesn't consider the
693 * device as a joystick then.
694 */
695 if (field->application == HID_GD_SYSTEM_CONTROL)
696 goto ignore;
697
880d29f1 698 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
dde5845a 699 switch (usage->hid) {
880d29f1
JS		 700 case HID_GD_UP: usage->hat_dir = 1; break;
701 case HID_GD_DOWN: usage->hat_dir = 5; break;
702 case HID_GD_RIGHT: usage->hat_dir = 3; break;
703 case HID_GD_LEFT: usage->hat_dir = 7; break;
704 default: goto unknown;
dde5845a 705 }
880d29f1
JS		 706 if (field->dpad) {
707 map_abs(field->dpad);
708 goto ignore;
d4ae650a 709 }
880d29f1 710 map_abs(ABS_HAT0X);
dde5845a 711 break;
880d29f1 712 }
dde5845a 713
880d29f1
JS		 714 switch (usage->hid) {
715 /* These usage IDs map directly to the usage codes. */
716 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
717 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
79346d62
BT		 718 if (field->flags & HID_MAIN_ITEM_RELATIVE)
719 map_rel(usage->hid & 0xf);
720 else
721 map_abs_clear(usage->hid & 0xf);
722 break;
723
2dc702c9
PH		 724 case HID_GD_WHEEL:
725 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
726 set_bit(REL_WHEEL, input->relbit);
727 map_rel(REL_WHEEL_HI_RES);
728 } else {
729 map_abs(usage->hid & 0xf);
730 }
731 break;
732 case HID_GD_SLIDER: case HID_GD_DIAL:
880d29f1
JS		 733 if (field->flags & HID_MAIN_ITEM_RELATIVE)
734 map_rel(usage->hid & 0xf);
735 else
736 map_abs(usage->hid & 0xf);
737 break;
dde5845a 738
880d29f1
JS		 739 case HID_GD_HATSWITCH:
740 usage->hat_min = field->logical_minimum;
741 usage->hat_max = field->logical_maximum;
742 map_abs(ABS_HAT0X);
743 break;
dde5845a 744
880d29f1
JS		 745 case HID_GD_START: map_key_clear(BTN_START); break;
746 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
dde5845a 747
61df56be
HG		 748 case HID_GD_RFKILL_BTN:
749 /* MS wireless radio ctl extension, also check CA */
6e7edabf 750 if (field->application == HID_GD_WIRELESS_RADIO_CTLS) {
61df56be
HG		 751 map_key_clear(KEY_RFKILL);
752 /* We need to simulate the btn release */
753 field->flags |= HID_MAIN_ITEM_RELATIVE;
754 break;
755 }
6b554275 756 goto unknown;
61df56be 757
880d29f1
JS		 758 default: goto unknown;
759 }
dde5845a 760
880d29f1
JS		 761 break;
762
763 case HID_UP_LED:
764 switch (usage->hid & 0xffff) { /* HID-Value: */
765 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
766 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
767 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
768 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
769 case 0x05: map_led (LED_KANA); break; /* "Kana" */
770 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
771 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
772 case 0x09: map_led (LED_MUTE); break; /* "Mute" */
773 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
774 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
775 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
776
777 default: goto ignore;
778 }
779 break;
780
781 case HID_UP_DIGITIZER:
8473a93d
TT		 782 if ((field->application & 0xff) == 0x01) /* Digitizer */
783 __set_bit(INPUT_PROP_POINTER, input->propbit);
784 else if ((field->application & 0xff) == 0x02) /* Pen */
785 __set_bit(INPUT_PROP_DIRECT, input->propbit);
786
880d29f1 787 switch (usage->hid & 0xff) {
8c8b01c3
FB		 788 case 0x00: /* Undefined */
789 goto ignore;
790
880d29f1
JS		 791 case 0x30: /* TipPressure */
792 if (!test_bit(BTN_TOUCH, input->keybit)) {
793 device->quirks |= HID_QUIRK_NOTOUCH;
794 set_bit(EV_KEY, input->evbit);
795 set_bit(BTN_TOUCH, input->keybit);
dde5845a 796 }
880d29f1 797 map_abs_clear(ABS_PRESSURE);
dde5845a
JK		 798 break;
799
880d29f1
JS		 800 case 0x32: /* InRange */
801 switch (field->physical & 0xff) {
802 case 0x21: map_key(BTN_TOOL_MOUSE); break;
803 case 0x22: map_key(BTN_TOOL_FINGER); break;
804 default: map_key(BTN_TOOL_PEN); break;
dde5845a
JK		 805 }
806 break;
807
581c4484
DT		 808 case 0x3b: /* Battery Strength */
809 hidinput_setup_battery(device, HID_INPUT_REPORT, field);
810 usage->type = EV_PWR;
505f394f 811 return;
581c4484 812
880d29f1
JS		 813 case 0x3c: /* Invert */
814 map_key_clear(BTN_TOOL_RUBBER);
dde5845a
JK		 815 break;
816
b73b2da0
NK		 817 case 0x3d: /* X Tilt */
818 map_abs_clear(ABS_TILT_X);
819 break;
820
821 case 0x3e: /* Y Tilt */
822 map_abs_clear(ABS_TILT_Y);
823 break;
824
880d29f1
JS		 825 case 0x33: /* Touch */
826 case 0x42: /* TipSwitch */
827 case 0x43: /* TipSwitch2 */
828 device->quirks &= ~HID_QUIRK_NOTOUCH;
829 map_key_clear(BTN_TOUCH);
830 break;
dde5845a 831
880d29f1
JS		 832 case 0x44: /* BarrelSwitch */
833 map_key_clear(BTN_STYLUS);
834 break;
dde5845a 835
654c192a
PC		 836 case 0x45: /* ERASER */
837 /*
838 * This event is reported when eraser tip touches the surface.
839 * Actual eraser (BTN_TOOL_RUBBER) is set by Invert usage when
840 * tool gets in proximity.
841 */
842 map_key_clear(BTN_TOUCH);
843 break;
844
50b63697 845 case 0x46: /* TabletPick */
368c9664 846 case 0x5a: /* SecondaryBarrelSwitch */
50b63697
NK		 847 map_key_clear(BTN_STYLUS2);
848 break;
849
368c9664 850 case 0x5b: /* TransducerSerialNumber */
5989a55a
JG		 851 usage->type = EV_MSC;
852 usage->code = MSC_SERIAL;
853 bit = input->mscbit;
854 max = MSC_MAX;
368c9664
PC		 855 break;
856
880d29f1
JS		 857 default: goto unknown;
858 }
859 break;
860
f3dddf24
DT		 861 case HID_UP_TELEPHONY:
862 switch (usage->hid & HID_USAGE) {
863 case 0x2f: map_key_clear(KEY_MICMUTE); break;
864 case 0xb0: map_key_clear(KEY_NUMERIC_0); break;
865 case 0xb1: map_key_clear(KEY_NUMERIC_1); break;
866 case 0xb2: map_key_clear(KEY_NUMERIC_2); break;
867 case 0xb3: map_key_clear(KEY_NUMERIC_3); break;
868 case 0xb4: map_key_clear(KEY_NUMERIC_4); break;
869 case 0xb5: map_key_clear(KEY_NUMERIC_5); break;
870 case 0xb6: map_key_clear(KEY_NUMERIC_6); break;
871 case 0xb7: map_key_clear(KEY_NUMERIC_7); break;
872 case 0xb8: map_key_clear(KEY_NUMERIC_8); break;
873 case 0xb9: map_key_clear(KEY_NUMERIC_9); break;
874 case 0xba: map_key_clear(KEY_NUMERIC_STAR); break;
875 case 0xbb: map_key_clear(KEY_NUMERIC_POUND); break;
876 case 0xbc: map_key_clear(KEY_NUMERIC_A); break;
877 case 0xbd: map_key_clear(KEY_NUMERIC_B); break;
878 case 0xbe: map_key_clear(KEY_NUMERIC_C); break;
879 case 0xbf: map_key_clear(KEY_NUMERIC_D); break;
880 default: goto ignore;
881 }
882 break;
883
437f3b19 884 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
880d29f1
JS		 885 switch (usage->hid & HID_USAGE) {
886 case 0x000: goto ignore;
437f3b19
JW		 887 case 0x030: map_key_clear(KEY_POWER); break;
888 case 0x031: map_key_clear(KEY_RESTART); break;
889 case 0x032: map_key_clear(KEY_SLEEP); break;
880d29f1 890 case 0x034: map_key_clear(KEY_SLEEP); break;
437f3b19 891 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
880d29f1
JS		 892 case 0x036: map_key_clear(BTN_MISC); break;
893
437f3b19
JW		 894 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
895 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
896 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
897 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
898 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
899 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
900 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
901 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
902 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
903
904 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
905 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
906 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
907 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
908 case 0x069: map_key_clear(KEY_RED); break;
909 case 0x06a: map_key_clear(KEY_GREEN); break;
910 case 0x06b: map_key_clear(KEY_BLUE); break;
911 case 0x06c: map_key_clear(KEY_YELLOW); break;
f7b3d85a 912 case 0x06d: map_key_clear(KEY_ASPECT_RATIO); break;
437f3b19 913
f362e690
OG		 914 case 0x06f: map_key_clear(KEY_BRIGHTNESSUP); break;
915 case 0x070: map_key_clear(KEY_BRIGHTNESSDOWN); break;
916 case 0x072: map_key_clear(KEY_BRIGHTNESS_TOGGLE); break;
917 case 0x073: map_key_clear(KEY_BRIGHTNESS_MIN); break;
918 case 0x074: map_key_clear(KEY_BRIGHTNESS_MAX); break;
919 case 0x075: map_key_clear(KEY_BRIGHTNESS_AUTO); break;
920
7975a1d6
DT		 921 case 0x079: map_key_clear(KEY_KBDILLUMUP); break;
922 case 0x07a: map_key_clear(KEY_KBDILLUMDOWN); break;
923 case 0x07c: map_key_clear(KEY_KBDILLUMTOGGLE); break;
924
437f3b19 925 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
880d29f1 926 case 0x083: map_key_clear(KEY_LAST); break;
437f3b19 927 case 0x084: map_key_clear(KEY_ENTER); break;
880d29f1
JS		 928 case 0x088: map_key_clear(KEY_PC); break;
929 case 0x089: map_key_clear(KEY_TV); break;
930 case 0x08a: map_key_clear(KEY_WWW); break;
931 case 0x08b: map_key_clear(KEY_DVD); break;
932 case 0x08c: map_key_clear(KEY_PHONE); break;
933 case 0x08d: map_key_clear(KEY_PROGRAM); break;
934 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
935 case 0x08f: map_key_clear(KEY_GAMES); break;
936 case 0x090: map_key_clear(KEY_MEMO); break;
937 case 0x091: map_key_clear(KEY_CD); break;
938 case 0x092: map_key_clear(KEY_VCR); break;
939 case 0x093: map_key_clear(KEY_TUNER); break;
940 case 0x094: map_key_clear(KEY_EXIT); break;
941 case 0x095: map_key_clear(KEY_HELP); break;
942 case 0x096: map_key_clear(KEY_TAPE); break;
943 case 0x097: map_key_clear(KEY_TV2); break;
944 case 0x098: map_key_clear(KEY_SAT); break;
945 case 0x09a: map_key_clear(KEY_PVR); break;
946
947 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
948 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
949 case 0x0a0: map_key_clear(KEY_VCR2); break;
950
951 case 0x0b0: map_key_clear(KEY_PLAY); break;
952 case 0x0b1: map_key_clear(KEY_PAUSE); break;
953 case 0x0b2: map_key_clear(KEY_RECORD); break;
954 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
955 case 0x0b4: map_key_clear(KEY_REWIND); break;
956 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
957 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
958 case 0x0b7: map_key_clear(KEY_STOPCD); break;
959 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
960 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
437f3b19
JW		 961 case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
962 case 0x0bf: map_key_clear(KEY_SLOW); break;
880d29f1
JS		 963
964 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
f362e690 965 case 0x0cf: map_key_clear(KEY_VOICECOMMAND); break;
880d29f1
JS		 966 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
967 case 0x0e2: map_key_clear(KEY_MUTE); break;
968 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
969 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
970 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
437f3b19 971 case 0x0f5: map_key_clear(KEY_SLOW); break;
880d29f1 972
f362e690 973 case 0x181: map_key_clear(KEY_BUTTONCONFIG); break;
880d29f1
JS		 974 case 0x182: map_key_clear(KEY_BOOKMARKS); break;
975 case 0x183: map_key_clear(KEY_CONFIG); break;
976 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
977 case 0x185: map_key_clear(KEY_EDITOR); break;
978 case 0x186: map_key_clear(KEY_SPREADSHEET); break;
979 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
980 case 0x188: map_key_clear(KEY_PRESENTATION); break;
981 case 0x189: map_key_clear(KEY_DATABASE); break;
982 case 0x18a: map_key_clear(KEY_MAIL); break;
983 case 0x18b: map_key_clear(KEY_NEWS); break;
984 case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
985 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
986 case 0x18e: map_key_clear(KEY_CALENDAR); break;
f362e690
OG		 987 case 0x18f: map_key_clear(KEY_TASKMANAGER); break;
988 case 0x190: map_key_clear(KEY_JOURNAL); break;
880d29f1
JS		 989 case 0x191: map_key_clear(KEY_FINANCE); break;
990 case 0x192: map_key_clear(KEY_CALC); break;
437f3b19 991 case 0x193: map_key_clear(KEY_PLAYER); break;
880d29f1
JS		 992 case 0x194: map_key_clear(KEY_FILE); break;
993 case 0x196: map_key_clear(KEY_WWW); break;
0690535d 994 case 0x199: map_key_clear(KEY_CHAT); break;
880d29f1
JS		 995 case 0x19c: map_key_clear(KEY_LOGOFF); break;
996 case 0x19e: map_key_clear(KEY_COFFEE); break;
f362e690
OG		 997 case 0x19f: map_key_clear(KEY_CONTROLPANEL); break;
998 case 0x1a2: map_key_clear(KEY_APPSELECT); break;
5820e4d4
HG		 999 case 0x1a3: map_key_clear(KEY_NEXT); break;
1000 case 0x1a4: map_key_clear(KEY_PREVIOUS); break;
880d29f1
JS		 1001 case 0x1a6: map_key_clear(KEY_HELP); break;
1002 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
1003 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
437f3b19 1004 case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
f362e690 1005 case 0x1b1: map_key_clear(KEY_SCREENSAVER); break;
5820e4d4 1006 case 0x1b4: map_key_clear(KEY_FILE); break;
437f3b19
JW		 1007 case 0x1b6: map_key_clear(KEY_IMAGES); break;
1008 case 0x1b7: map_key_clear(KEY_AUDIO); break;
1009 case 0x1b8: map_key_clear(KEY_VIDEO); break;
880d29f1
JS		 1010 case 0x1bc: map_key_clear(KEY_MESSENGER); break;
1011 case 0x1bd: map_key_clear(KEY_INFO); break;
ce856634 1012 case 0x1cb: map_key_clear(KEY_ASSISTANT); break;
880d29f1
JS		 1013 case 0x201: map_key_clear(KEY_NEW); break;
1014 case 0x202: map_key_clear(KEY_OPEN); break;
1015 case 0x203: map_key_clear(KEY_CLOSE); break;
1016 case 0x204: map_key_clear(KEY_EXIT); break;
1017 case 0x207: map_key_clear(KEY_SAVE); break;
1018 case 0x208: map_key_clear(KEY_PRINT); break;
1019 case 0x209: map_key_clear(KEY_PROPS); break;
1020 case 0x21a: map_key_clear(KEY_UNDO); break;
1021 case 0x21b: map_key_clear(KEY_COPY); break;
1022 case 0x21c: map_key_clear(KEY_CUT); break;
1023 case 0x21d: map_key_clear(KEY_PASTE); break;
1024 case 0x21f: map_key_clear(KEY_FIND); break;
1025 case 0x221: map_key_clear(KEY_SEARCH); break;
1026 case 0x222: map_key_clear(KEY_GOTO); break;
1027 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
1028 case 0x224: map_key_clear(KEY_BACK); break;
1029 case 0x225: map_key_clear(KEY_FORWARD); break;
1030 case 0x226: map_key_clear(KEY_STOP); break;
1031 case 0x227: map_key_clear(KEY_REFRESH); break;
1032 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
1033 case 0x22d: map_key_clear(KEY_ZOOMIN); break;
1034 case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
1035 case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
afbbaa1b 1036 case 0x232: map_key_clear(KEY_FULL_SCREEN); break;
880d29f1
JS		 1037 case 0x233: map_key_clear(KEY_SCROLLUP); break;
1038 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
2dc702c9
PH		 1039 case 0x238: /* AC Pan */
1040 set_bit(REL_HWHEEL, input->relbit);
1041 map_rel(REL_HWHEEL_HI_RES);
1042 break;
437f3b19 1043 case 0x23d: map_key_clear(KEY_EDIT); break;
880d29f1 1044 case 0x25f: map_key_clear(KEY_CANCEL); break;
437f3b19
JW		 1045 case 0x269: map_key_clear(KEY_INSERT); break;
1046 case 0x26a: map_key_clear(KEY_DELETE); break;
880d29f1
JS		 1047 case 0x279: map_key_clear(KEY_REDO); break;
1048
1049 case 0x289: map_key_clear(KEY_REPLY); break;
1050 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
1051 case 0x28c: map_key_clear(KEY_SEND); break;
1052
bd21d847
DT		 1053 case 0x29d: map_key_clear(KEY_KBD_LAYOUT_NEXT); break;
1054
f974008f
OG		 1055 case 0x2c7: map_key_clear(KEY_KBDINPUTASSIST_PREV); break;
1056 case 0x2c8: map_key_clear(KEY_KBDINPUTASSIST_NEXT); break;
1057 case 0x2c9: map_key_clear(KEY_KBDINPUTASSIST_PREVGROUP); break;
1058 case 0x2ca: map_key_clear(KEY_KBDINPUTASSIST_NEXTGROUP); break;
1059 case 0x2cb: map_key_clear(KEY_KBDINPUTASSIST_ACCEPT); break;
1060 case 0x2cc: map_key_clear(KEY_KBDINPUTASSIST_CANCEL); break;
1061
96dd8687
DT		 1062 case 0x29f: map_key_clear(KEY_SCALE); break;
1063
afdb5cce 1064 default: map_key_clear(KEY_UNKNOWN);
880d29f1
JS		 1065 }
1066 break;
1067
4f5ca836 1068 case HID_UP_GENDEVCTRLS:
581c4484
DT		 1069 switch (usage->hid) {
1070 case HID_DC_BATTERYSTRENGTH:
1071 hidinput_setup_battery(device, HID_INPUT_REPORT, field);
1072 usage->type = EV_PWR;
505f394f 1073 return;
581c4484
DT		 1074 }
1075 goto unknown;
4f5ca836 1076
880d29f1
JS		 1077 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
1078 set_bit(EV_REP, input->evbit);
1079 switch (usage->hid & HID_USAGE) {
1080 case 0x021: map_key_clear(KEY_PRINT); break;
1081 case 0x070: map_key_clear(KEY_HP); break;
1082 case 0x071: map_key_clear(KEY_CAMERA); break;
1083 case 0x072: map_key_clear(KEY_SOUND); break;
1084 case 0x073: map_key_clear(KEY_QUESTION); break;
1085 case 0x080: map_key_clear(KEY_EMAIL); break;
1086 case 0x081: map_key_clear(KEY_CHAT); break;
1087 case 0x082: map_key_clear(KEY_SEARCH); break;
1088 case 0x083: map_key_clear(KEY_CONNECT); break;
1089 case 0x084: map_key_clear(KEY_FINANCE); break;
1090 case 0x085: map_key_clear(KEY_SPORT); break;
1091 case 0x086: map_key_clear(KEY_SHOP); break;
929578ab
KYL		 1092 default: goto ignore;
1093 }
1094 break;
1095
1096 case HID_UP_HPVENDOR2:
1097 set_bit(EV_REP, input->evbit);
1098 switch (usage->hid & HID_USAGE) {
08fc9473 1099 case 0x001: map_key_clear(KEY_MICMUTE); break;
929578ab
KYL		 1100 case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN); break;
1101 case 0x004: map_key_clear(KEY_BRIGHTNESSUP); break;
880d29f1
JS		 1102 default: goto ignore;
1103 }
1104 break;
dde5845a 1105
880d29f1
JS		 1106 case HID_UP_MSVENDOR:
1107 goto ignore;
dde5845a 1108
880d29f1
JS		 1109 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
1110 set_bit(EV_REP, input->evbit);
1111 goto ignore;
dde5845a 1112
880d29f1 1113 case HID_UP_LOGIVENDOR:
b466c1dd
SW		 1114 /* intentional fallback */
1115 case HID_UP_LOGIVENDOR2:
1116 /* intentional fallback */
1117 case HID_UP_LOGIVENDOR3:
880d29f1 1118 goto ignore;
fc99f22c 1119
880d29f1
JS		 1120 case HID_UP_PID:
1121 switch (usage->hid & HID_USAGE) {
1122 case 0xa4: map_key_clear(BTN_DEAD); break;
1123 default: goto ignore;
1124 }
1125 break;
dde5845a 1126
880d29f1
JS		 1127 default:
1128 unknown:
1129 if (field->report_size == 1) {
1130 if (field->report->type == HID_OUTPUT_REPORT) {
1131 map_led(LED_MISC);
dde5845a
JK		 1132 break;
1133 }
880d29f1 1134 map_key(BTN_MISC);
dde5845a 1135 break;
880d29f1
JS		 1136 }
1137 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
1138 map_rel(REL_MISC);
1139 break;
1140 }
1141 map_abs(ABS_MISC);
1142 break;
dde5845a
JK		 1143 }
1144
10bd065f 1145mapped:
35556bed
MZ		 1146 /* Mapping failed, bail out */
1147 if (!bit)
1148 return;
1149
4f388217
DT		 1150 if (device->driver->input_mapped &&
1151 device->driver->input_mapped(device, hidinput, field, usage,
1152 &bit, &max) < 0) {
1153 /*
1154 * The driver indicated that no further generic handling
1155 * of the usage is desired.
1156 */
1157 return;
1158 }
c500c971 1159
dde5845a
JK		 1160 set_bit(usage->type, input->evbit);
1161
190d7f02
BT		 1162 /*
1163 * This part is *really* controversial:
1164 * - HID aims at being generic so we should do our best to export
1165 * all incoming events
1166 * - HID describes what events are, so there is no reason for ABS_X
1167 * to be mapped to ABS_Y
1168 * - HID is using *_MISC+N as a default value, but nothing prevents
1169 * *_MISC+N to overwrite a legitimate even, which confuses userspace
1170 * (for instance ABS_MISC + 7 is ABS_MT_SLOT, which has a different
1171 * processing)
1172 *
1173 * If devices still want to use this (at their own risk), they will
1174 * have to use the quirk HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE, but
1175 * the default should be a reliable mapping.
1176 */
1177 while (usage->code <= max && test_and_set_bit(usage->code, bit)) {
1178 if (device->quirks & HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE) {
1179 usage->code = find_next_zero_bit(bit,
1180 max + 1,
1181 usage->code);
1182 } else {
1183 device->status |= HID_STAT_DUP_DETECTED;
1184 goto ignore;
1185 }
1186 }
dde5845a
JK		 1187
1188 if (usage->code > max)
1189 goto ignore;
1190
dde5845a
JK		 1191 if (usage->type == EV_ABS) {
1192
1193 int a = field->logical_minimum;
1194 int b = field->logical_maximum;
1195
1196 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
1197 a = field->logical_minimum = 0;
1198 b = field->logical_maximum = 255;
1199 }
1200
1201 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
1202 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
1203 else input_set_abs_params(input, usage->code, a, b, 0, 0);
1204
4ea6e4ff
NK		 1205 input_abs_set_res(input, usage->code,
1206 hidinput_calc_abs_res(field, usage->code));
1207
6967b4d9
HR		 1208 /* use a larger default input buffer for MT devices */
1209 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
1210 input_set_events_per_packet(input, 60);
dde5845a
JK		 1211 }
1212
1213 if (usage->type == EV_ABS &&
1214 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
1215 int i;
1216 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
1217 input_set_abs_params(input, i, -1, 1, 0, 0);
1218 set_bit(i, input->absbit);
1219 }
1220 if (usage->hat_dir && !field->dpad)
1221 field->dpad = usage->code;
1222 }
1223
2c1d8aea
JK		 1224 /* for those devices which produce Consumer volume usage as relative,
1225 * we emulate pressing volumeup/volumedown appropriate number of times
1226 * in hidinput_hid_event()
1227 */
1228 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1229 (usage->code == ABS_VOLUME)) {
1230 set_bit(KEY_VOLUMEUP, input->keybit);
1231 set_bit(KEY_VOLUMEDOWN, input->keybit);
1232 }
1233
c01d50d1
JK		 1234 if (usage->type == EV_KEY) {
1235 set_bit(EV_MSC, input->evbit);
1236 set_bit(MSC_SCAN, input->mscbit);
1237 }
1238
dde5845a 1239 return;
a635f9dd 1240
4f388217
DT		 1241ignore:
1242 usage->type = 0;
1243 usage->code = 0;
dde5845a
JK		 1244}
1245
2dc702c9
PH		 1246static void hidinput_handle_scroll(struct hid_usage *usage,
1247 struct input_dev *input,
1248 __s32 value)
1249{
1250 int code;
1251 int hi_res, lo_res;
1252
1253 if (value == 0)
1254 return;
1255
1256 if (usage->code == REL_WHEEL_HI_RES)
1257 code = REL_WHEEL;
1258 else
1259 code = REL_HWHEEL;
1260
1261 /*
1262 * Windows reports one wheel click as value 120. Where a high-res
1263 * scroll wheel is present, a fraction of 120 is reported instead.
1264 * Our REL_WHEEL_HI_RES axis does the same because all HW must
1265 * adhere to the 120 expectation.
1266 */
1267 hi_res = value * 120/usage->resolution_multiplier;
1268
1269 usage->wheel_accumulated += hi_res;
1270 lo_res = usage->wheel_accumulated/120;
1271 if (lo_res)
1272 usage->wheel_accumulated -= lo_res * 120;
1273
1274 input_event(input, EV_REL, code, lo_res);
1275 input_event(input, EV_REL, usage->code, hi_res);
1276}
1277
dde5845a
JK		 1278void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
1279{
1280 struct input_dev *input;
b4482a4b 1281 unsigned *quirks = &hid->quirks;
dde5845a 1282
581c4484 1283 if (!usage->type)
dde5845a
JK		 1284 return;
1285
581c4484
DT		 1286 if (usage->type == EV_PWR) {
1287 hidinput_update_battery(hid, value);
1288 return;
1289 }
dde5845a 1290
581c4484 1291 if (!field->hidinput)
dde5845a
JK		 1292 return;
1293
581c4484
DT		 1294 input = field->hidinput->input;
1295
dde5845a
JK		 1296 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
1297 int hat_dir = usage->hat_dir;
1298 if (!hat_dir)
1299 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
1300 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
1301 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
fc99f22c
DM		 1302 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
1303 return;
1304 }
dde5845a
JK		 1305
1306 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
1307 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
1308 return;
1309 }
1310
1311 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
1312 if (value) {
1313 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
1314 return;
1315 }
1316 input_event(input, usage->type, usage->code, 0);
1317 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
1318 return;
1319 }
1320
1321 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
1322 int a = field->logical_minimum;
1323 int b = field->logical_maximum;
1324 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
1325 }
1326
1327 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
58037eb9 1328 dbg_hid("Maximum Effects - %d\n",value);
dde5845a
JK		 1329 return;
1330 }
1331
1332 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
58037eb9 1333 dbg_hid("PID Pool Report\n");
dde5845a
JK		 1334 return;
1335 }
1336
1337 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
1338 return;
1339
2dc702c9
PH		 1340 if ((usage->type == EV_REL) && (usage->code == REL_WHEEL_HI_RES ||
1341 usage->code == REL_HWHEEL_HI_RES)) {
1342 hidinput_handle_scroll(usage, input, value);
1343 return;
1344 }
1345
2c1d8aea
JK		 1346 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1347 (usage->code == ABS_VOLUME)) {
1348 int count = abs(value);
1349 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
1350 int i;
1351
1352 for (i = 0; i < count; i++) {
1353 input_event(input, EV_KEY, direction, 1);
1354 input_sync(input);
1355 input_event(input, EV_KEY, direction, 0);
1356 input_sync(input);
1357 }
1358 return;
1359 }
1360
883e0e36
NK		 1361 /*
1362 * Ignore out-of-range values as per HID specification,
c3883fe0
TK		 1363 * section 5.10 and 6.2.25, when NULL state bit is present.
1364 * When it's not, clamp the value to match Microsoft's input
1365 * driver as mentioned in "Required HID usages for digitizers":
1366 * https://msdn.microsoft.com/en-us/library/windows/hardware/dn672278(v=vs.85).asp
a688393b
JK		 1367 *
1368 * The logical_minimum < logical_maximum check is done so that we
1369 * don't unintentionally discard values sent by devices which
1370 * don't specify logical min and max.
883e0e36
NK		 1371 */
1372 if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
c3883fe0
TK		 1373 (field->logical_minimum < field->logical_maximum)) {
1374 if (field->flags & HID_MAIN_ITEM_NULL_STATE &&
1375 (value < field->logical_minimum ||
1376 value > field->logical_maximum)) {
1377 dbg_hid("Ignoring out-of-range value %x\n", value);
1378 return;
1379 }
1380 value = clamp(value,
1381 field->logical_minimum,
1382 field->logical_maximum);
6da70669
JK		 1383 }
1384
6ce901eb
DH		 1385 /*
1386 * Ignore reports for absolute data if the data didn't change. This is
1387 * not only an optimization but also fixes 'dead' key reports. Some
1388 * RollOver implementations for localized keys (like BACKSLASH/PIPE; HID
1389 * 0x31 and 0x32) report multiple keys, even though a localized keyboard
1390 * can only have one of them physically available. The 'dead' keys
1391 * report constant 0. As all map to the same keycode, they'd confuse
1392 * the input layer. If we filter the 'dead' keys on the HID level, we
1393 * skip the keycode translation and only forward real events.
1394 */
1395 if (!(field->flags & (HID_MAIN_ITEM_RELATIVE |
1396 HID_MAIN_ITEM_BUFFERED_BYTE)) &&
8e7b3410 1397 (field->flags & HID_MAIN_ITEM_VARIABLE) &&
6ce901eb
DH		 1398 usage->usage_index < field->maxusage &&
1399 value == field->value[usage->usage_index])
1400 return;
1401
c01d50d1 1402 /* report the usage code as scancode if the key status has changed */
323ddaa8
JB		 1403 if (usage->type == EV_KEY &&
1404 (!test_bit(usage->code, input->key)) == value)
c01d50d1 1405 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1fe8736d 1406
dde5845a
JK		 1407 input_event(input, usage->type, usage->code, value);
1408
3eb4351a
DT		 1409 if ((field->flags & HID_MAIN_ITEM_RELATIVE) &&
1410 usage->type == EV_KEY && value) {
1411 input_sync(input);
dde5845a 1412 input_event(input, usage->type, usage->code, 0);
3eb4351a 1413 }
dde5845a
JK		 1414}
1415
1416void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1417{
1418 struct hid_input *hidinput;
1419
24750f3e
HR		 1420 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
1421 return;
1422
dde5845a
JK		 1423 list_for_each_entry(hidinput, &hid->inputs, list)
1424 input_sync(hidinput->input);
1425}
229695e5 1426EXPORT_SYMBOL_GPL(hidinput_report_event);
dde5845a 1427
229695e5 1428int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
dde5845a
JK		 1429{
1430 struct hid_report *report;
1431 int i, j;
1432
1433 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1434 for (i = 0; i < report->maxfield; i++) {
1435 *field = report->field[i];
1436 for (j = 0; j < (*field)->maxusage; j++)
1437 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1438 return j;
1439 }
1440 }
1441 return -1;
1442}
229695e5 1443EXPORT_SYMBOL_GPL(hidinput_find_field);
dde5845a 1444
4371ea82
DK		 1445struct hid_field *hidinput_get_led_field(struct hid_device *hid)
1446{
1447 struct hid_report *report;
1448 struct hid_field *field;
1449 int i, j;
1450
1451 list_for_each_entry(report,
1452 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1453 list) {
1454 for (i = 0; i < report->maxfield; i++) {
1455 field = report->field[i];
1456 for (j = 0; j < field->maxusage; j++)
1457 if (field->usage[j].type == EV_LED)
1458 return field;
1459 }
1460 }
1461 return NULL;
1462}
1463EXPORT_SYMBOL_GPL(hidinput_get_led_field);
1464
1465unsigned int hidinput_count_leds(struct hid_device *hid)
1466{
1467 struct hid_report *report;
1468 struct hid_field *field;
1469 int i, j;
1470 unsigned int count = 0;
1471
1472 list_for_each_entry(report,
1473 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1474 list) {
1475 for (i = 0; i < report->maxfield; i++) {
1476 field = report->field[i];
1477 for (j = 0; j < field->maxusage; j++)
1478 if (field->usage[j].type == EV_LED &&
1479 field->value[j])
1480 count += 1;
1481 }
1482 }
1483 return count;
1484}
1485EXPORT_SYMBOL_GPL(hidinput_count_leds);
1486
50c9d75b
DH		 1487static void hidinput_led_worker(struct work_struct *work)
1488{
1489 struct hid_device *hid = container_of(work, struct hid_device,
1490 led_work);
1491 struct hid_field *field;
1492 struct hid_report *report;
3064a03b
AM		 1493 int ret;
1494 u32 len;
50c9d75b
DH		 1495 __u8 *buf;
1496
1497 field = hidinput_get_led_field(hid);
1498 if (!field)
1499 return;
1500
1501 /*
1502 * field->report is accessed unlocked regarding HID core. So there might
1503 * be another incoming SET-LED request from user-space, which changes
1504 * the LED state while we assemble our outgoing buffer. However, this
1505 * doesn't matter as hid_output_report() correctly converts it into a
1506 * boolean value no matter what information is currently set on the LED
1507 * field (even garbage). So the remote device will always get a valid
1508 * request.
1509 * And in case we send a wrong value, a next led worker is spawned
1510 * for every SET-LED request so the following worker will send the
1511 * correct value, guaranteed!
1512 */
1513
1514 report = field->report;
1515
1516 /* use custom SET_REPORT request if possible (asynchronous) */
1517 if (hid->ll_driver->request)
1518 return hid->ll_driver->request(hid, report, HID_REQ_SET_REPORT);
1519
1520 /* fall back to generic raw-output-report */
dabb05c6 1521 len = hid_report_len(report);
9d27f432 1522 buf = hid_alloc_report_buf(report, GFP_KERNEL);
50c9d75b
DH		 1523 if (!buf)
1524 return;
1525
1526 hid_output_report(report, buf);
1527 /* synchronous output report */
2ebaebcf
BT		 1528 ret = hid_hw_output_report(hid, buf, len);
1529 if (ret == -ENOSYS)
1530 hid_hw_raw_request(hid, report->id, buf, len, HID_OUTPUT_REPORT,
1531 HID_REQ_SET_REPORT);
50c9d75b
DH		 1532 kfree(buf);
1533}
1534
1535static int hidinput_input_event(struct input_dev *dev, unsigned int type,
1536 unsigned int code, int value)
1537{
1538 struct hid_device *hid = input_get_drvdata(dev);
1539 struct hid_field *field;
1540 int offset;
1541
1542 if (type == EV_FF)
1543 return input_ff_event(dev, type, code, value);
1544
1545 if (type != EV_LED)
1546 return -1;
1547
1548 if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
1549 hid_warn(dev, "event field not found\n");
1550 return -1;
1551 }
1552
1553 hid_set_field(field, offset, value);
1554
1555 schedule_work(&hid->led_work);
1556 return 0;
1557}
1558
7c379146
JK		 1559static int hidinput_open(struct input_dev *dev)
1560{
e0712985
DT		 1561 struct hid_device *hid = input_get_drvdata(dev);
1562
5bea7660 1563 return hid_hw_open(hid);
7c379146
JK		 1564}
1565
1566static void hidinput_close(struct input_dev *dev)
1567{
e0712985
DT		 1568 struct hid_device *hid = input_get_drvdata(dev);
1569
5bea7660 1570 hid_hw_close(hid);
7c379146
JK		 1571}
1572
d43c17ea
BT		 1573static bool __hidinput_change_resolution_multipliers(struct hid_device *hid,
1574 struct hid_report *report, bool use_logical_max)
2dc702c9 1575{
2dc702c9 1576 struct hid_usage *usage;
d43c17ea 1577 bool update_needed = false;
1ad273d6 1578 bool get_report_completed = false;
2dc702c9
PH		 1579 int i, j;
1580
d43c17ea
BT		 1581 if (report->maxfield == 0)
1582 return false;
2dc702c9 1583
d43c17ea
BT		 1584 for (i = 0; i < report->maxfield; i++) {
1585 __s32 value = use_logical_max ?
1586 report->field[i]->logical_maximum :
1587 report->field[i]->logical_minimum;
1588
1589 /* There is no good reason for a Resolution
1590 * Multiplier to have a count other than 1.
1591 * Ignore that case.
2dc702c9 1592 */
d43c17ea
BT		 1593 if (report->field[i]->report_count != 1)
1594 continue;
2dc702c9 1595
d43c17ea
BT		 1596 for (j = 0; j < report->field[i]->maxusage; j++) {
1597 usage = &report->field[i]->usage[j];
2dc702c9 1598
d43c17ea 1599 if (usage->hid != HID_GD_RESOLUTION_MULTIPLIER)
2dc702c9
PH		 1600 continue;
1601
1ad273d6
PH		 1602 /*
1603 * If we have more than one feature within this
1604 * report we need to fill in the bits from the
1605 * others before we can overwrite the ones for the
1606 * Resolution Multiplier.
1607 *
1608 * But if we're not allowed to read from the device,
1609 * we just bail. Such a device should not exist
1610 * anyway.
1611 */
1612 if (!get_report_completed && report->maxfield > 1) {
1613 if (hid->quirks & HID_QUIRK_NO_INIT_REPORTS)
1614 return update_needed;
1615
1616 hid_hw_request(hid, report, HID_REQ_GET_REPORT);
1617 hid_hw_wait(hid);
1618 get_report_completed = true;
1619 }
1620
39b3c3a5 1621 report->field[i]->value[j] = value;
d43c17ea
BT		 1622 update_needed = true;
1623 }
1624 }
1625
1626 return update_needed;
1627}
2dc702c9 1628
d43c17ea
BT		 1629static void hidinput_change_resolution_multipliers(struct hid_device *hid)
1630{
1631 struct hid_report_enum *rep_enum;
1632 struct hid_report *rep;
1633 int ret;
2dc702c9 1634
d43c17ea
BT		 1635 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1636 list_for_each_entry(rep, &rep_enum->report_list, list) {
1637 bool update_needed = __hidinput_change_resolution_multipliers(hid,
1638 rep, true);
1639
1640 if (update_needed) {
1641 ret = __hid_request(hid, rep, HID_REQ_SET_REPORT);
1642 if (ret) {
1643 __hidinput_change_resolution_multipliers(hid,
1644 rep, false);
1645 return;
2dc702c9
PH		 1646 }
1647 }
2dc702c9
PH		 1648 }
1649
1650 /* refresh our structs */
1651 hid_setup_resolution_multiplier(hid);
1652}
1653
f635bd11
HR		 1654static void report_features(struct hid_device *hid)
1655{
1656 struct hid_driver *drv = hid->driver;
1657 struct hid_report_enum *rep_enum;
1658 struct hid_report *rep;
581c4484 1659 struct hid_usage *usage;
f635bd11
HR		 1660 int i, j;
1661
f635bd11
HR		 1662 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1663 list_for_each_entry(rep, &rep_enum->report_list, list)
cc6b54aa
BT		 1664 for (i = 0; i < rep->maxfield; i++) {
1665 /* Ignore if report count is out of bounds. */
1666 if (rep->field[i]->report_count < 1)
1667 continue;
1668
c5a92aa3 1669 for (j = 0; j < rep->field[i]->maxusage; j++) {
581c4484
DT		 1670 usage = &rep->field[i]->usage[j];
1671
c5a92aa3 1672 /* Verify if Battery Strength feature is available */
581c4484
DT		 1673 if (usage->hid == HID_DC_BATTERYSTRENGTH)
1674 hidinput_setup_battery(hid, HID_FEATURE_REPORT,
1675 rep->field[i]);
c5a92aa3
DN		 1676
1677 if (drv->feature_mapping)
581c4484 1678 drv->feature_mapping(hid, rep->field[i], usage);
c5a92aa3 1679 }
cc6b54aa 1680 }
f635bd11
HR		 1681}
1682
c554bb04
BT		 1683static struct hid_input *hidinput_allocate(struct hid_device *hid,
1684 unsigned int application)
ae751fa8
BT		 1685{
1686 struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1687 struct input_dev *input_dev = input_allocate_device();
c554bb04 1688 const char *suffix = NULL;
d7065620 1689 size_t suffix_len, name_len;
c554bb04
BT		 1690
1691 if (!hidinput || !input_dev)
1692 goto fail;
1693
1694 if ((hid->quirks & HID_QUIRK_INPUT_PER_APP) &&
1695 hid->maxapplication > 1) {
1696 switch (application) {
1697 case HID_GD_KEYBOARD:
1698 suffix = "Keyboard";
1699 break;
1700 case HID_GD_KEYPAD:
1701 suffix = "Keypad";
1702 break;
1703 case HID_GD_MOUSE:
1704 suffix = "Mouse";
1705 break;
1706 case HID_DG_STYLUS:
1707 suffix = "Pen";
1708 break;
1709 case HID_DG_TOUCHSCREEN:
1710 suffix = "Touchscreen";
1711 break;
1712 case HID_DG_TOUCHPAD:
1713 suffix = "Touchpad";
1714 break;
1715 case HID_GD_SYSTEM_CONTROL:
1716 suffix = "System Control";
1717 break;
1718 case HID_CP_CONSUMER_CONTROL:
1719 suffix = "Consumer Control";
1720 break;
1721 case HID_GD_WIRELESS_RADIO_CTLS:
1722 suffix = "Wireless Radio Control";
1723 break;
ba6b055e
BT		 1724 case HID_GD_SYSTEM_MULTIAXIS:
1725 suffix = "System Multi Axis";
1726 break;
c554bb04
BT		 1727 default:
1728 break;
1729 }
1730 }
1731
1732 if (suffix) {
d7065620
BT		 1733 name_len = strlen(hid->name);
1734 suffix_len = strlen(suffix);
1735 if ((name_len < suffix_len) ||
1736 strcmp(hid->name + name_len - suffix_len, suffix)) {
1737 hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
1738 hid->name, suffix);
1739 if (!hidinput->name)
1740 goto fail;
1741 }
ae751fa8
BT		 1742 }
1743
1744 input_set_drvdata(input_dev, hid);
3c86726c 1745 input_dev->event = hidinput_input_event;
ae751fa8
BT		 1746 input_dev->open = hidinput_open;
1747 input_dev->close = hidinput_close;
1748 input_dev->setkeycode = hidinput_setkeycode;
1749 input_dev->getkeycode = hidinput_getkeycode;
1750
c554bb04 1751 input_dev->name = hidinput->name ? hidinput->name : hid->name;
ae751fa8
BT		 1752 input_dev->phys = hid->phys;
1753 input_dev->uniq = hid->uniq;
1754 input_dev->id.bustype = hid->bus;
1755 input_dev->id.vendor = hid->vendor;
1756 input_dev->id.product = hid->product;
1757 input_dev->id.version = hid->version;
bbe31754 1758 input_dev->dev.parent = &hid->dev;
e1b63c01 1759
ae751fa8 1760 hidinput->input = input_dev;
0d6c3011 1761 hidinput->application = application;
ae751fa8
BT		 1762 list_add_tail(&hidinput->list, &hid->inputs);
1763
e1b63c01
BT		 1764 INIT_LIST_HEAD(&hidinput->reports);
1765
ae751fa8 1766 return hidinput;
c554bb04
BT		 1767
1768fail:
1769 kfree(hidinput);
1770 input_free_device(input_dev);
1771 hid_err(hid, "Out of memory during hid input probe\n");
1772 return NULL;
ae751fa8
BT		 1773}
1774
4f22decf
BT		 1775static bool hidinput_has_been_populated(struct hid_input *hidinput)
1776{
1777 int i;
1778 unsigned long r = 0;
1779
1780 for (i = 0; i < BITS_TO_LONGS(EV_CNT); i++)
1781 r |= hidinput->input->evbit[i];
1782
1783 for (i = 0; i < BITS_TO_LONGS(KEY_CNT); i++)
1784 r |= hidinput->input->keybit[i];
1785
1786 for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
1787 r |= hidinput->input->relbit[i];
1788
1789 for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++)
1790 r |= hidinput->input->absbit[i];
1791
1792 for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++)
1793 r |= hidinput->input->mscbit[i];
1794
1795 for (i = 0; i < BITS_TO_LONGS(LED_CNT); i++)
1796 r |= hidinput->input->ledbit[i];
1797
1798 for (i = 0; i < BITS_TO_LONGS(SND_CNT); i++)
1799 r |= hidinput->input->sndbit[i];
1800
1801 for (i = 0; i < BITS_TO_LONGS(FF_CNT); i++)
1802 r |= hidinput->input->ffbit[i];
1803
1804 for (i = 0; i < BITS_TO_LONGS(SW_CNT); i++)
1805 r |= hidinput->input->swbit[i];
1806
1807 return !!r;
1808}
1809
1810static void hidinput_cleanup_hidinput(struct hid_device *hid,
1811 struct hid_input *hidinput)
1812{
1813 struct hid_report *report;
1814 int i, k;
1815
1816 list_del(&hidinput->list);
1817 input_free_device(hidinput->input);
c554bb04 1818 kfree(hidinput->name);
4f22decf
BT		 1819
1820 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1821 if (k == HID_OUTPUT_REPORT &&
1822 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1823 continue;
1824
1825 list_for_each_entry(report, &hid->report_enum[k].report_list,
1826 list) {
1827
1828 for (i = 0; i < report->maxfield; i++)
1829 if (report->field[i]->hidinput == hidinput)
1830 report->field[i]->hidinput = NULL;
1831 }
1832 }
1833
1834 kfree(hidinput);
1835}
1836
72d19459
BT		 1837static struct hid_input *hidinput_match(struct hid_report *report)
1838{
1839 struct hid_device *hid = report->device;
1840 struct hid_input *hidinput;
1841
1842 list_for_each_entry(hidinput, &hid->inputs, list) {
1843 if (hidinput->report &&
1844 hidinput->report->id == report->id)
1845 return hidinput;
1846 }
1847
1848 return NULL;
1849}
1850
f07b3c1d
BT		 1851static struct hid_input *hidinput_match_application(struct hid_report *report)
1852{
1853 struct hid_device *hid = report->device;
1854 struct hid_input *hidinput;
1855
1856 list_for_each_entry(hidinput, &hid->inputs, list) {
0d6c3011 1857 if (hidinput->application == report->application)
f07b3c1d 1858 return hidinput;
7c7d7ac7
DT		 1859
1860 /*
1861 * Keep SystemControl and ConsumerControl applications together
1862 * with the main keyboard, if present.
1863 */
1864 if ((report->application == HID_GD_SYSTEM_CONTROL ||
1865 report->application == HID_CP_CONSUMER_CONTROL) &&
1866 hidinput->application == HID_GD_KEYBOARD) {
1867 return hidinput;
1868 }
f07b3c1d
BT		 1869 }
1870
1871 return NULL;
1872}
1873
72d19459
BT		 1874static inline void hidinput_configure_usages(struct hid_input *hidinput,
1875 struct hid_report *report)
1876{
1877 int i, j;
1878
1879 for (i = 0; i < report->maxfield; i++)
1880 for (j = 0; j < report->field[i]->maxusage; j++)
1881 hidinput_configure_usage(hidinput, report->field[i],
1882 report->field[i]->usage + j);
1883}
1884
dde5845a
JK		 1885/*
1886 * Register the input device; print a message.
1887 * Configure the input layer interface
1888 * Read all reports and initialize the absolute field values.
1889 */
1890
93c10132 1891int hidinput_connect(struct hid_device *hid, unsigned int force)
dde5845a 1892{
9ebf3d76 1893 struct hid_driver *drv = hid->driver;
dde5845a 1894 struct hid_report *report;
72d19459 1895 struct hid_input *next, *hidinput = NULL;
c554bb04 1896 unsigned int application;
72d19459 1897 int i, k;
dde5845a
JK		 1898
1899 INIT_LIST_HEAD(&hid->inputs);
50c9d75b 1900 INIT_WORK(&hid->led_work, hidinput_led_worker);
dde5845a 1901
190d7f02
BT		 1902 hid->status &= ~HID_STAT_DUP_DETECTED;
1903
93c10132
JS		 1904 if (!force) {
1905 for (i = 0; i < hid->maxcollection; i++) {
1906 struct hid_collection *col = &hid->collection[i];
1907 if (col->type == HID_COLLECTION_APPLICATION ||
1908 col->type == HID_COLLECTION_PHYSICAL)
1909 if (IS_INPUT_APPLICATION(col->usage))
1910 break;
1911 }
dde5845a 1912
93c10132
JS		 1913 if (i == hid->maxcollection)
1914 return -1;
1915 }
dde5845a 1916
f635bd11
HR		 1917 report_features(hid);
1918
1919 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
0d2689c0
BT		 1920 if (k == HID_OUTPUT_REPORT &&
1921 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1922 continue;
5556feae 1923
dde5845a
JK		 1924 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1925
1926 if (!report->maxfield)
1927 continue;
1928
c554bb04
BT		 1929 application = report->application;
1930
72d19459
BT		 1931 /*
1932 * Find the previous hidinput report attached
1933 * to this report id.
1934 */
1935 if (hid->quirks & HID_QUIRK_MULTI_INPUT)
1936 hidinput = hidinput_match(report);
f07b3c1d
BT		 1937 else if (hid->maxapplication > 1 &&
1938 (hid->quirks & HID_QUIRK_INPUT_PER_APP))
1939 hidinput = hidinput_match_application(report);
72d19459 1940
dde5845a 1941 if (!hidinput) {
c554bb04 1942 hidinput = hidinput_allocate(hid, application);
ae751fa8 1943 if (!hidinput)
368d290b 1944 goto out_unwind;
dde5845a
JK		 1945 }
1946
72d19459 1947 hidinput_configure_usages(hidinput, report);
4f22decf 1948
72d19459 1949 if (hid->quirks & HID_QUIRK_MULTI_INPUT)
dde5845a 1950 hidinput->report = report;
e1b63c01
BT		 1951
1952 list_add_tail(&report->hidinput_list,
1953 &hidinput->reports);
dde5845a 1954 }
0d2689c0 1955 }
dde5845a 1956
2dc702c9
PH		 1957 hidinput_change_resolution_multipliers(hid);
1958
72d19459 1959 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
39335d1c
BT		 1960 if (drv->input_configured &&
1961 drv->input_configured(hid, hidinput))
1962 goto out_unwind;
1963
1964 if (!hidinput_has_been_populated(hidinput)) {
72d19459
BT		 1965 /* no need to register an input device not populated */
1966 hidinput_cleanup_hidinput(hid, hidinput);
1967 continue;
1968 }
1969
72d19459
BT		 1970 if (input_register_device(hidinput->input))
1971 goto out_unwind;
1972 hidinput->registered = true;
4f22decf
BT		 1973 }
1974
1975 if (list_empty(&hid->inputs)) {
1976 hid_err(hid, "No inputs registered, leaving\n");
1977 goto out_unwind;
1978 }
1979
190d7f02
BT		 1980 if (hid->status & HID_STAT_DUP_DETECTED)
1981 hid_dbg(hid,
1982 "Some usages could not be mapped, please use HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE if this is legitimate.\n");
1983
dde5845a 1984 return 0;
368d290b 1985
368d290b
DH		 1986out_unwind:
1987 /* unwind the ones we already registered */
1988 hidinput_disconnect(hid);
1989
1990 return -1;
dde5845a 1991}
229695e5 1992EXPORT_SYMBOL_GPL(hidinput_connect);
dde5845a
JK		 1993
1994void hidinput_disconnect(struct hid_device *hid)
1995{
1996 struct hid_input *hidinput, *next;
1997
4f5ca836
JF		 1998 hidinput_cleanup_battery(hid);
1999
dde5845a
JK		 2000 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
2001 list_del(&hidinput->list);
72d19459
BT		 2002 if (hidinput->registered)
2003 input_unregister_device(hidinput->input);
2004 else
2005 input_free_device(hidinput->input);
e38c0ac5 2006 kfree(hidinput->name);
dde5845a
JK		 2007 kfree(hidinput);
2008 }
50c9d75b
DH		 2009
2010 /* led_work is spawned by input_dev callbacks, but doesn't access the
2011 * parent input_dev at all. Once all input devices are removed, we
2012 * know that led_work will never get restarted, so we can cancel it
2013 * synchronously and are safe. */
2014 cancel_work_sync(&hid->led_work);
dde5845a 2015}
229695e5 2016EXPORT_SYMBOL_GPL(hidinput_disconnect);
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